Sleet cutter for trolley wires



April 21, 1925 G. s. MOORE SLEET CUTTER FOR TROLLEY WIRES Filed Jan. 4, 1924 Giles S. Moore l atented Apr. 21, 1925.

UNITED 1,534,72 r AT OFFICE;

GILES s. oon-n, or mmAn-nromsinnmnn, ASSIGNOR TO 'rnoLLEY SHOE-WHEEL COMPANY, 01* INDIANAPOLIS, INDIAN-A, AoonronA'r-ion or INDIANA.

sL'EE'r CUTTER FOR"TROLLEY wmns;

Application filed January 4, 1924. Seria-l K046845 76.

7 for Trolley Wires, of which the following is a specification. I

My said invention relates to a sleet cutter for trolley wires and it is an object of-the same to provide a sleet cutter adapted. for use particularly in connection with trolleys of the sliding shoetyp'e. It is an object of the invention to provide a device of the character described which shall eiliciently remove the sleet or ice from the wire and at the same time shall close the circuit through the wire. v

Another object ofthe invention is to provide *a device of the character described which can be quicklyjapplied or removed and it is desired also to provide in connection therewith a trolley of the sliding shoe type of the partso'f which can readily be assembled or disniounted. I I

Still another object is to provide a-sleet cutter in which arcing shallflbe eliminated to a greater extent than in other devices of like character hitherto. known or used.

Referring to the accompanying drawings, which are made a part hereof and on which similar reference characters indicate simi- .lar parts,

Figure 1 is an elevation of my device in the position assinned when the car is moving backward, i

Figure 2 a similar view in an intermediate position, the car having st'arted to move forward, Figure 3 the final position assumed when the car is moving in a forward direction,

Figure 4 is a perspective of a sleet cutter of a preferred type, s

Figure 5 a transverse section of the sleet cutter and shoe, and

Figure 6, a perspective of a. modified form. r I

In the drawings reference character 1 indicates a trolley pole having a harp 11 with forks 12 extending at an angle to the general direction-of the trolley. pole and supporting a pivot pin 13 on which is mounted a bracket 14% of a generally trianular form as seen in elevation. A crossto o I a I bar 15 shown in dottedlmes 1n Flgures 1,

2 and 3 acts as a stop against which a projection 1'6 of the bracket may rest in one position of the same to limit the movement of the bracket in one direction. The stop is provided with an oblique upper face against which the bracket strikes for limiting its movement in the contrary direction. one corner of the bracket 1% a. pivot pin 17 is held in place by cotter pins 18, and a wheel 19 is journaled on the pin said wheel having one or more notches adapted to recei vea pawl 20 by which the wheel may be held against rotation in one direction. A projection '21 (Figure 3) on the bracket forms a stop to limit the movement of the pawl in one direction and a projection 29 on thebracket coacts with the tail of the pawl to limit its movement in the other dimotion, the pawl being pivoted at 23 on the bracket. It will be understood that the va rio'us pins mentioned extend through and are held in opposite side members of the bracket or of the harp as the case may be.

At the third corner of the bracket is a pivot pin 24L held in place by cotter pins 25.

A sliding shoe 26 is pivotal-1y supportedby the pin 24, said shoe being adapted for sliding contact with the trolley wire in the for ward motion of the trolley. A pair of forks 27 on the harp are located at opposite sides of the tail 2 8 of the shoe when iii the active position to prevent ei'ig'agement of cross wires under the tail of the shoe and to keep the same in proper position. ll heth'er the trolley is on or oh" the wire it cannot tear down or catch in overhead constructions.

The shoe 96 is intended as wi li be plain from the drawings to engage the wire during the forward movement of the car and when the movement of the car is reversed the bracket will tilt about its pivot 13 so as to permit the wheel 19 toengage the wire 29 whereupon the wheel can revolve freely during the backward movement. On forward movement of the car the wheel rotates in reverse direction until engaged by the pawl as shown in the drawings whereupon the bracket will tilt about its pivot pin 13 to bring the rear end of the shoe into engagement with the wire as in Figure 2 and then the shoe will tilt, its rear end striking the wheel 19. Movement of the shoe in the con trary direction is limited by a crossbar 30.

A sleet cutter having a body 31 (Figure 4) is provided with a hook 32 for engagement under the rear end of the shoe and has side flanges similar to those of the shoe to provide a groove for receiving the wire 29. At its forward end the sleet cutter tapers off to a thin end portion having a hole at 33 to receive a bolt 34 passing through a corresponding opening in the shoe. The sleet cutter is cored out between the flanges so as to leave an abrupt shoulder 35 near the rear end. Spaced from this shoulder is a second shoulder formed of a separable blade 36 resting at its ends in openings in the flanges of the body 31. The blade 36 has slots at each end to receive cotter pins 37 which serve to hold the blade 36 in place when it is dismounted from the shoe. The length of the blade 36 is such that when in position on the shoe it will be held in place by the side flanges of the shoe as illustrated in Figure 5.

The blade 36 has an abrupt forward shoulder providing the main cutting ele ment for removing sleet from the wires and the part behind the shoulder 35 provides an effective contact with the wire. The shoulder 35 may of course take part in the sleet cutting action if necessary. It will be seen that the cutting blade 36 can readily be re moved when it becomes worn and a new part secured to the body 31 with very little labor while the remainder of the sleet cutter can be used indefinitely without renewal. At the same time the sliding shoe can serve its purpose in the absence of the sleet cutter until the latter is needed when it can quickly be secured in place thereon without in any way interfering with the action of the wheel 19 or any other parts of the device.

In Figure 6 I have shown a modified form of sleet cutter comprising a body 38 having a shoulder 35 and one or more shoulders integral therewith. lVhen the shoulder 39 becomes worn the entire device must be discarded but this form may be preferable because of lower lilttllll'filCllUl'lllg cost in the first instance, especially "for use Where ice seldom towns on the wires and the cutters are held in storage for use only in rare emer gencies.

It will be obvious to those skilled in the art that various changes may be made in the device of my disclosure without departing from the spirit of the invention and therefore I do not limit myself to what is shown in the drawings'and described in the specification, but only as indicated in the appended claims.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent, is:

1. I11 a trolley, a sliding shoe normally positioned for engagement with the wire in one direction of movement, a roller engageable with the wire on reverse movement of the car, and sleet cutting means adapted to be positioned on the trolley for engagement with the wire in place of said shoe on forward movement of the car, substantially as set forth.

2. In a trolley, a sliding trolley shoe having lateral flanges, a sleet cutter fitting between said flanges, and means for securing the sleet cutter to the shoe, substantially as set forth.

3. In a trolley, a sliding trolley shoe having lateral flanges, a sleet cutter fitting between said flanges, means for securing the sleet cutter to the shoe, and one or more removable cutting plates 011 the sleet cutter,

substantially as set forth.

l. In a trolley, a sliding trolley shoe hav ing lateral flanges, a sleet cutter fitting between said flanges, and means for securing the sleet cutter to the shoe said sleet cutter having one or more removable blades and a face spaced from the rearmost blade for contact with the wire, substantially as set forth.

In witness whereof, I have hereunto set my hand and seal at Indianapolis, Indiana, this 2nd day of January, A. D. nineteen hundred and twenty-four.

GILES S. MOORE. lVitnesses M. L. SILULER, Es'innnx A. GUAGH, 

